From owner-freebsd-bugs  Sun Apr 14  5: 0:19 2002
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP id A570937B41C
	for <freebsd-bugs@hub.freebsd.org>; Sun, 14 Apr 2002 05:00:02 -0700 (PDT)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.11.6/8.11.6) id g3EC02D60867;
	Sun, 14 Apr 2002 05:00:02 -0700 (PDT)
	(envelope-from gnats)
Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP id E8EEC37B404
	for <freebsd-gnats-submit@FreeBSD.org>; Sun, 14 Apr 2002 04:54:12 -0700 (PDT)
Received: (from nobody@localhost)
	by freefall.freebsd.org (8.11.6/8.11.6) id g3EBsCk60135;
	Sun, 14 Apr 2002 04:54:12 -0700 (PDT)
	(envelope-from nobody)
Message-Id: <200204141154.g3EBsCk60135@freefall.freebsd.org>
Date: Sun, 14 Apr 2002 04:54:12 -0700 (PDT)
From: Christian Laursen <xi@borderworlds.dk>
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-1.0
Subject: kern/37057: Problem with rlimits on filesystem mounted from /dev/vn0c
Sender: owner-freebsd-bugs@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-bugs.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-bugs>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-bugs>
X-Loop: FreeBSD.org


>Number:         37057
>Category:       kern
>Synopsis:       Problem with rlimits on filesystem mounted from /dev/vn0c
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Apr 14 05:00:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Christian Laursen
>Release:        4.5-STABLE
>Organization:
The Border Worlds
>Environment:
FreeBSD ferengi.borderworlds.dk 4.5-STABLE FreeBSD 4.5-STABLE #5: Sat Apr 13 23:25:44 CEST 2002     root@ferengi.borderworlds.dk:/usr/obj/usr/src/sys/FERENGI  i386
>Description:
When setting a soft limit on the filesize, any writes to a file seems to result in a SIGXFSZ being delivered, when the filesystem is mounted from a vn device. (This prevents postfix to work)
>How-To-Repeat:
This C program will trigger the bug:

==============8<====================
#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
#include <stdio.h>

int main () {
  struct rlimit rlim;
  FILE *file;

  getrlimit (RLIMIT_FSIZE, &rlim);

  rlim.rlim_cur = 15;

  setrlimit (RLIMIT_FSIZE, &rlim);

  if ((file = fopen("testfile", "w")) == NULL) {
    perror("fopen");
    exit(1);
  }

  fputs ("Some text", file);
  fclose (file);

  return 0;
}
==============8<====================


Samle output:

ferengi# cd /tmp/
ferengi# ./limit 
ferengi# cd /mnt/
ferengi# df .
Filesystem 1K-blocks Used Avail Capacity  Mounted on
/dev/vn0c       4870    4  4478     0%    /mnt
ferengi# /tmp/limit 
Filesize limit exceeded

>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted:

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message